Posted
by
kdawsonon Tuesday January 06, 2009 @10:03PM
from the why-did-the-galaxy-cross-the-road dept.

The AAS meeting in San Diego is producing lots of news on the astronomy front. Studying galaxies that were forming in the universe's first billion years, astronomers have solved a longstanding cosmic chicken-and-egg problem: which forms first, galaxies or the black holes at their cores? "'We finally have been able to measure black-hole and bulge masses in several galaxies seen as they were in the first billion years after the Big Bang, and the evidence suggests that the constant ratio seen nearby may not hold in the early Universe. The black holes in these young galaxies are much more massive compared to the bulges than those seen in the nearby Universe,"' said Fabian Walter of the Max-Planck Institute for Radioastronomy in Germany. 'The implication is that the black holes started growing first.'"